Friction-clutch.



No. 815,168. PATENTED MAR. 13, 1905. F. F. HOEHNE a; A. 1321mm.

FRIGTXON CLUTCH.

APPLICATION rum mu 1?. 1905.

a a L 0 m m M n a m pa l H n L fifl W ww, m h w M MM b u 0 M 6 3 Wan a a mwzfi W Wiimooeo No. 815,168. PATENTBD MAR. 13, 1906. F. F. HOEHNE & A. DENZEE.

FRICTION CLUTCH.

upucnxon mum JULY 17, 1905 W MD 2 flu WW m 4 n 8 m 0% r 2 it UNITED sTA'rns PATENT OFFICE.

FERDINAND F. HOEHNE AND AUGUST DENZER, OF KAUKAUNA, WISCON- SIN, ASSIGNORS OF ONE-THIRD TO 0. M. FARWELL, OF KAUKAUNA,

"lSCONSlN.

FRlCTlON-CLUTOH.

Specification of Letters Patent.

Eatented March 13, 1906.

Application filed July 17, 1905. Serial No; 270,023.

To all whom if may concern;

Be it known that we, Fsnnrnann F. Honnnn and Answer Devan, citizens of the United States, residing at Kauliauna, in the county of Outagamie and State of Nisconsin, have invented certain new and. useful Improvements in Friction-Clutches; and we do declare the following to be a fulhclear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in friction-clutches; and it consists in the novel construction, combination, and arran ement of devices herein shown and describer The object of the invention to improve and simplify the construction and operation of devices of this character, and thereby render the same more powerful and ellicient in use and less expensive to manufacture.

The above and other objects, which will appear as the nature of our invention is better understood, are accomplished by means of the construction illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of our improved friction-clutch. Fig. 2 is a vertical longitudinal sectional view through the same. Fig. 3 is a vertical transverse sectional view talren on the line 3 3 in Fig. 2. Fig. 4 is a similar sectional view taken on the line 4 4 in Fig. 2, pnd Fig. 5 is a detail view of the sliding col- Referring to the drawings by numeral, 1 denotes the shaft upon which is loosely mounted a pulley or similar rotary element 2. Secured to the pulley 2 is a disk 3, which projeets radially and has adjacent to its periphery transversely-extending slots or openings 4, in which blocks of wood 5 or other friction elements are slidebly mounted. The disk 3, as shown, is secured to the pulley 2, so as to rotate therewith, by he ing its hub to the hub of the latter, as s own at 6. Keyed u on the shaft 1, as shown at 7, is a second disk 8, which projects radially and is disosed adjacent to the outer face of the disk 3.

he disk 8 is formed with an extended hub 9, which is externally screw-threaded as shown at 10, and around its periphery with a laterally-projecting annular flan e 11, which projects over the peripher o the disk 3, as clearly shown in Fig. 2 o the drawin s. Said disk 8 has also formed on its perip ery, at

suitable intervals, apertured lugs 12 and upon its outer face pairs of apertured lugs 13, w rich are preferably arranged midway between the lugs 12, as clearly shown in Fig. 3 of the drawings. The friction blocks or elements 5, which slide laterally in the disk 3, are adapted tobe forced into frictional contact with the inner face of the disk 8, so as to lock the same to rotate together, by a ring or clamping element 14, which is slidably mountet u on the disk 8. Said ring 14 is substantial y right angular in form and has its radially-extending portion 15 dis osed upon the inner side of the disk 3 and its atera ly-extending portion 16 overlap in the annularfiange 11 upon the disk 8. al rin 14 has formed upon its periphery aperture lugs l7 and 18, which are arranged alternately at suitable intervals, as clearly shown in Fig. 4 of the drawings. The ring 14 is slidahle toward and from the disk 8 b providing uidc bolts or rods 19, whic passed through the apertured lugs 12 and 17 are and which are retained therein by split keys or the like 20. Surrounding the bolts or rods 19 are coil-s rings 21, which are adapted to force the dis lr 8 and ring 14 apart and hold them in their normal or unclamped position, in which either the pulley or shaft may be rotated without imparting its motion to the other.

In order to move the ring 14 laterally so as to clamp the friction blocks or elements 5 between it and the disk 8, levers 22 are pivoted, as shown at 23, between the apertured lugs 13, and their apertured outer ends are adept ed to receive bolts or rods 24, which pass throu h the apertured in s 18 upon the ring 14. 'lhe outer ends of t is bolts or rods 24 are screw-threaded and provided with ad justing-nuts 25, so that the ring 14 may be adjusted to regulate its clampin action when operated by the levers 22. T e latter have their inner ends loosely connected by links 26 to the short ends of bell-cranks 27, which are pivoted, as shown at 28, between apertured lugs upon a collar or annular band 29. This collar 29 is adapted to slide freely upon the threaded hub 9 of the disk 8 and is adjusted longitudinally by a pair of nuts 30, which are engaged with the screw-threads 10 of said hub. The outer long arms of the bellcranks 27 are loosely connected by links 31 to a collar or sleeve 32, which is adapted to slide u on the shaft 1. The said collar may be shi ted longitudinally in order to operate the clutch b any suitable means. As shown, the same is crowd with an annular groove 33 to receive a ring 34, carrying trunnions 35, which pro'ect into said threaded apertures in the forke or bifurcated end of an operatinglever 36. The inward sliding movement of the sleeve or collar 32 is limited by a loose sleeve 37, which has one end slidably engaged with the outer end of the hub 9 and its opposite end apertured or bored to receive the shaft 1, as clearly shown in Fig. 2 of the draw ings.

The construction, operation, and advan-.

tages of this invention will be readily understood from the foregoing description, taken in connection with the accompanying drawings. It will be seen that when either the shaft 1 or the pulley 2 is rotated, when the parts are in the position shown in Fig. 2 of the drawings, motion of the one will be imparted to the other owing to the frictional engagement of the disk 8 and ring 14 with the o posite ends of the sliding friction blocks or e ements 5. To disconnect the shaft and pulley, the sleeve 32 is moved outwardly by the operating-lever 36, so that the outer ends of the bell-cranks 27 will be moved inwardly to cause their inner ends to swing the inner ends of the levers 22 outwardly. This movement of the levers 22 throws their outer ends toward the pulley 22, thereby releasing the ring 14 and permitting the springs 21 to move the same inwardly or out of engagement with the friction-blocks 5. By adjusting the nuts 30 u on the threaded hub 9 of the disk 8 it will e seen that the clamping action of the rin 14 upon the blocks 5 may be varied as desired to render the clutch more or less powerful.

While we have shown and described the preferred embodiment of our invention, it will be understood that we do not wish to be limited to the precise construction herein set forth, since various changes in the form, proportion, and the minor details of construction may be resorted to Without departing from tl.e principle or sacrificing any of the advantages of this invention.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

The combination of a shaft, a pulleyloosely mounted thereon, a disk keyed to said pulley and formed with apertures, sliding friction blocks or elements in said apertures, a second disk keyed to said shaft and formed with a screw-threaded hub, a flanged clamping-ring, guide-rods for slidably connecting the latter to the secondmentioned disk, springs u on said rod for forcin said ring and said disk apart, threaded rocl s carried by said ring, levers pivoted upon the second -mentioned disk and formed with apertures to receive said rods, adjusting-nuts upon the threaded ends of said rods, a collar upon said threaded hub, adjusting-nuts upon said threaded hub to limit the movement of said collar, bellcranks ivoted to said collar, links connecting sai bell-cranks and levers, a stop-collar surrounding said shaft and said hub, a sliding sleeve upon said shaft, links connecting sai sleeve and said bell-cranks, and a lever for shifting said sleeve, substantially as described.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

FERDINAND F. HOEHNE. AUGUST DENZER.

Witnesses O. H. L. HAMER, S. C. GATSHEZ. 

